Riveting-tool



A. l. ALBRIGHT AND F. L. MYATT. RIVETING TOOL.

APPLICATION FILED JUNE 24, 1920.

1,384,374, Patented July 12, 1921;

WI TNESSES %aaeaaf W/ Afro/Mrs head of the dolly-bar and associated struc- UNITED STAIES.

PATENT, oFE ca] AsA IVYALBRIGHT- AND FRANCIS LAMAR; M ami; on MONROE, LOUISIANA,

, mvETme-Toon Applicatioiii filed June 24,

To all whom it'mayconcem:

Be it known that we, AsA IVY ALBRIGHT and F RANGIS LAMAR MYAT'I, citizensof the United States, and residents of Monroe, -i n the parish of Ouachita and'State of Lou1s1- ana, have invented a new and useful Improvement inRlveting-Tools, of whlch the following is a specification.

The present invention'relatesgenerally to riveting tools andfmore particularly to an improved rivetholder or'dolly adapted to hold the made head of a rivet while the other I end isbeing headed.

durable construction, comparatively easy and inexpensive tomanufacture and highly reliable and efficient in operation.

Other objects and advantages reside in the certainnovelfeatures of the construction,-arrangement and combination of parts which will be hereinafter more fully described and particularly pointed out in the appended claims, reference being had to the accompanying drawing forming part of this specification, and in which- Figure l is a perspective view of the improved rivet holder in use,

Fig. 2 is a transverse vertical section adjacent the adjusting screw,

Fig. 3 is a fragmentary view in longitudinal vertical section adjacent the loose con nection,

Fig. 4 is a fragmentary view in lon itudinal vertical section of the active en or tures,

Fig. 5 is a fragmentary detail view illustrating a different use.

Referring to the drawings it will be seen that the invention is preferably used in connection with channel members or similar structures as for instance, with a chassis of an automobile, the side members of which are indicated at A and B respectively, and one of the end cross members of which is indicated at C. The end cross member has its extremities extended over and riveted to the lower flange a and b of the respective channel members and has a strap connection D thus supported in position.

Specification of LettersPatent. P atented 12, 1921. i

1920. serial ms. 391,4 9.

provided with'a'n inturned end d which lies holder has its ends restin'gfupon the lower flanges aand b of the side members and is As shown in the drawings, the bed plate is arranged to lie in vertical alinement with the rivets to be headed.

A dolly-bar 6 is carried by the bed plate. One end of the dolly-bar is provided with an opening 7, the walls of which areconvexed so thatthe diameter ofv the opening increasesfrom its center toward each of its ends. An opening-8 of uniform cross section is provided in the bed plate and the openings 7 and 8 are arrangedto register. Aconnecting bolt 9 is inserted throughthe openings 7 and 8, thehead 10 of thebolt bearing againstithe upper surface of the dolly-bar and a nut 11 threaded upon the shank of the bolt bearing upon the under surface of the bed plate to secure the dolly- 'bar to the bed plate. However, the bolt 9 is of such length and the opening 7 of the dolly-bards of suchform that the dolly-bar may be freely moved vertically as well as horizontally with respect to the bed plate, although positively prevented from partak ing of any longitudinal movement with respect to the bed plate. The bolt 9, thus affords a loose connection between the dollybar and the bed plate.

The opposite end of the dolly-bar from the loose connection constitutes the active end or head and is indicated at 12. Intermediate the head 12 and the loose connection the dolly-bar is provided with an enlargement 13 having a threaded opening therethrough.

. A heavy adjusting screw 14 is operativcly mounted in the opening and has its lower end mounted as at 15 and engaging the bed plate and carries a handle 16 at its upper end.

In operation the bed plate is first positioned on the flanges of the channel mem' her and the head of the dolly-bar is then moved to engage the made head of the rivet as indicated in Fig. 4, this adjustment of the dolly-bar beingeifected by a suitable operation of the adjusting screw. The ad- I justing screw may be so set asto clamp the rivets in position and it is to be noted that it is not necessary to provide the head of the dolly-bar with cups or recesses as this clamping action sufiices.

As shown in Fig. 5 the extremity of the bed. plate may be also made to constitute a dolly head as indicated at 17, and in this arrangement we have a double dolly action" so that boththe head 12 and the head 17.

buck up or hold the made head of the rivets while the other structure of the bed plate and dolly-bar cooperate with the ad justing screw to provide the abutting or reactive force. V

'The loose connection afforded by the connecting rod 9, its head, nut 11 and the opening 8 of the dolly-bar constitutes an important feature of the present invention in that it provides for such movements of the dolly-bar as may be necessary to place it in position with its head holding the made head of the rivet. It is to be noted, however, that after the dolly-bar is set in; de sired position the action of the adjusting screw 141- which clamps it in this position may be supplemented by tightening up the nut 11 and thereby converting the normally loose connection intov a substantially rigid one.

' We claim: 1 t

1'. A" rivet holder adapted for use with *channel memberscomprising a bed plate adapted to "rest upon one of the flanges of the channelmember, a dolly-bar ca-rried by the bed plate and having anopening in one end anda head formed at its opposite end, a

loose connection between the dolly-bar and the bed plate comprising a bolt extending through the aperture of the dolly-bar, and

an adjusting screw carried by the dolly intermediate the loose connection and the head the bed plate and having an opening in one end and a head formed at its opposite end,

a loose connection between the dolly-bar and the 'bed plate comprising a bolt extending through the aperture of the dolly-bar, and

means for adjusting and maintaining the dolly-bar in desired position relative to the bed plate,

4. In a rivet holder of the character described, a support, a dolly-bar having one end connected to the support and the other .end constituting a head, and an adjusting screw carriedby the dolly-bar and operatively engaging the support. p j r 5. In a rivet holder ofthe character described, a bed plate having anend constituting a head for holding a rivet, a dolly-bar havingone end connected to the bed. plate and the other end constituting a head. for

holding a rivet and an adjustable screw carried by the dolly-bar. and operatively engaging the support. r

' ASA IVY ALBRIGHT.

FRANCIS LAMAR MYATT. 

